[PATCH 5.10.y 0/2] scsi: qla2xxx: Fix CVE-2022-49158 and CVE-2022-50493

[PATCH 5.10.y 0/2] scsi: qla2xxx: Fix CVE-2022-49158 and CVE-2022-50493

[Vasiliy Kovalev]

Backport two qla2xxx CVE fixes to 5.10.y. Sent as a series since both
patches touch drivers/scsi/qla2xxx/qla_init.c with overlapping context.

Arun Easi (1):
  scsi: qla2xxx: Fix crash when I/O abort times out

Quinn Tran (1):
  scsi: qla2xxx: Fix warning message due to adisc being flushed

 drivers/scsi/qla2xxx/qla_init.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

-- 
2.50.1

[PATCH 5.10.y 1/2] scsi: qla2xxx: Fix warning message due to adisc being flushed

[Vasiliy Kovalev]

From: Quinn Tran <qutran@marvell.com>

commit 64f24af75b79cba3b86b0760e27e0fa904db570f upstream.

Fix warning message due to adisc being flushed.  Linux kernel triggered a
warning message where a different error code type is not matching up with
the expected type. Add additional translation of one error code type to
another.

WARNING: CPU: 2 PID: 1131623 at drivers/scsi/qla2xxx/qla_init.c:498
qla2x00_async_adisc_sp_done+0x294/0x2b0 [qla2xxx]
CPU: 2 PID: 1131623 Comm: drmgr Not tainted 5.13.0-rc1-autotest #1
..
GPR28: c000000aaa9c8890 c0080000079ab678 c00000140a104800 c00000002bd19000
NIP [c00800000790857c] qla2x00_async_adisc_sp_done+0x294/0x2b0 [qla2xxx]
LR [c008000007908578] qla2x00_async_adisc_sp_done+0x290/0x2b0 [qla2xxx]
Call Trace:
[c00000001cdc3620] [c008000007908578] qla2x00_async_adisc_sp_done+0x290/0x2b0 [qla2xxx] (unreliable)
[c00000001cdc3710] [c0080000078f3080] __qla2x00_abort_all_cmds+0x1b8/0x580 [qla2xxx]
[c00000001cdc3840] [c0080000078f589c] qla2x00_abort_all_cmds+0x34/0xd0 [qla2xxx]
[c00000001cdc3880] [c0080000079153d8] qla2x00_abort_isp_cleanup+0x3f0/0x570 [qla2xxx]
[c00000001cdc3920] [c0080000078fb7e8] qla2x00_remove_one+0x3d0/0x480 [qla2xxx]
[c00000001cdc39b0] [c00000000071c274] pci_device_remove+0x64/0x120
[c00000001cdc39f0] [c0000000007fb818] device_release_driver_internal+0x168/0x2a0
[c00000001cdc3a30] [c00000000070e304] pci_stop_bus_device+0xb4/0x100
[c00000001cdc3a70] [c00000000070e4f0] pci_stop_and_remove_bus_device+0x20/0x40
[c00000001cdc3aa0] [c000000000073940] pci_hp_remove_devices+0x90/0x130
[c00000001cdc3b30] [c0080000070704d0] disable_slot+0x38/0x90 [rpaphp] [
c00000001cdc3b60] [c00000000073eb4c] power_write_file+0xcc/0x180
[c00000001cdc3be0] [c0000000007354bc] pci_slot_attr_store+0x3c/0x60
[c00000001cdc3c00] [c00000000055f820] sysfs_kf_write+0x60/0x80 [c00000001cdc3c20]
[c00000000055df10] kernfs_fop_write_iter+0x1a0/0x290
[c00000001cdc3c70] [c000000000447c4c] new_sync_write+0x14c/0x1d0
[c00000001cdc3d10] [c00000000044b134] vfs_write+0x224/0x330
[c00000001cdc3d60] [c00000000044b3f4] ksys_write+0x74/0x130
[c00000001cdc3db0] [c00000000002df70] system_call_exception+0x150/0x2d0
[c00000001cdc3e10] [c00000000000d45c] system_call_common+0xec/0x278

Link: https://lore.kernel.org/r/20220110050218.3958-5-njavali@marvell.com
Cc: stable@vger.kernel.org
Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[ kovalev: bp to fix CVE-2022-49158; in qla2x00_async_prli_sp_done used
  'if (res)' instead of 'else if (res)' due to the older kernel not having
  the preceding QLA_OS_TIMER_EXPIRED check (see upstream commit 4de067e5df12) ]
Signed-off-by: Vasiliy Kovalev <kovalev@altlinux.org>
---
 drivers/scsi/qla2xxx/qla_init.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 7b6227fde7be..79b9571f6350 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -283,6 +283,8 @@ static void qla2x00_async_login_sp_done(srb_t *sp, int res)
 		ea.iop[0] = lio->u.logio.iop[0];
 		ea.iop[1] = lio->u.logio.iop[1];
 		ea.sp = sp;
+		if (res)
+			ea.data[0] = MBS_COMMAND_ERROR;
 		qla24xx_handle_plogi_done_event(vha, &ea);
 	}
 
@@ -563,6 +565,8 @@ static void qla2x00_async_adisc_sp_done(srb_t *sp, int res)
 	ea.iop[1] = lio->u.logio.iop[1];
 	ea.fcport = sp->fcport;
 	ea.sp = sp;
+	if (res)
+		ea.data[0] = MBS_COMMAND_ERROR;
 
 	qla24xx_handle_adisc_event(vha, &ea);
 
@@ -1238,6 +1242,8 @@ static void qla2x00_async_prli_sp_done(srb_t *sp, int res)
 		ea.iop[0] = lio->u.logio.iop[0];
 		ea.iop[1] = lio->u.logio.iop[1];
 		ea.sp = sp;
+		if (res)
+			ea.data[0] = MBS_COMMAND_ERROR;
 
 		qla24xx_handle_prli_done_event(vha, &ea);
 	}
-- 
2.50.1

[PATCH 5.10.y 2/2] scsi: qla2xxx: Fix crash when I/O abort times out

[Vasiliy Kovalev]

From: Arun Easi <aeasi@marvell.com>

commit 68ad83188d782b2ecef2e41ac245d27e0710fe8e upstream.

While performing CPU hotplug, a crash with the following stack was seen:

Call Trace:
     qla24xx_process_response_queue+0x42a/0x970 [qla2xxx]
     qla2x00_start_nvme_mq+0x3a2/0x4b0 [qla2xxx]
     qla_nvme_post_cmd+0x166/0x240 [qla2xxx]
     nvme_fc_start_fcp_op.part.0+0x119/0x2e0 [nvme_fc]
     blk_mq_dispatch_rq_list+0x17b/0x610
     __blk_mq_sched_dispatch_requests+0xb0/0x140
     blk_mq_sched_dispatch_requests+0x30/0x60
     __blk_mq_run_hw_queue+0x35/0x90
     __blk_mq_delay_run_hw_queue+0x161/0x180
     blk_execute_rq+0xbe/0x160
     __nvme_submit_sync_cmd+0x16f/0x220 [nvme_core]
     nvmf_connect_admin_queue+0x11a/0x170 [nvme_fabrics]
     nvme_fc_create_association.cold+0x50/0x3dc [nvme_fc]
     nvme_fc_connect_ctrl_work+0x19/0x30 [nvme_fc]
     process_one_work+0x1e8/0x3c0

On abort timeout, completion was called without checking if the I/O was
already completed.

Verify that I/O and abort request are indeed outstanding before attempting
completion.

Fixes: 71c80b75ce8f ("scsi: qla2xxx: Do command completion on abort timeout")
Reported-by: Marco Patalano <mpatalan@redhat.com>
Tested-by: Marco Patalano <mpatalan@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20221129092634.15347-1-njavali@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[ kovalev: bp to fix CVE-2022-50493 ]
Signed-off-by: Vasiliy Kovalev <kovalev@altlinux.org>
---
 drivers/scsi/qla2xxx/qla_init.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 79b9571f6350..4a057748ba17 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -101,6 +101,7 @@ static void qla24xx_abort_iocb_timeout(void *data)
 	struct qla_qpair *qpair = sp->qpair;
 	u32 handle;
 	unsigned long flags;
+	int sp_found = 0, cmdsp_found = 0;
 
 	if (sp->cmd_sp)
 		ql_dbg(ql_dbg_async, sp->vha, 0x507c,
@@ -115,22 +116,27 @@ static void qla24xx_abort_iocb_timeout(void *data)
 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
 	for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
 		if (sp->cmd_sp && (qpair->req->outstanding_cmds[handle] ==
-		    sp->cmd_sp))
+		    sp->cmd_sp)) {
 			qpair->req->outstanding_cmds[handle] = NULL;
+			cmdsp_found = 1;
+		}
 
 		/* removing the abort */
 		if (qpair->req->outstanding_cmds[handle] == sp) {
 			qpair->req->outstanding_cmds[handle] = NULL;
+			sp_found = 1;
 			break;
 		}
 	}
 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
 
-	if (sp->cmd_sp)
+	if (cmdsp_found && sp->cmd_sp)
 		sp->cmd_sp->done(sp->cmd_sp, QLA_OS_TIMER_EXPIRED);
 
-	abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
-	sp->done(sp, QLA_OS_TIMER_EXPIRED);
+	if (sp_found) {
+		abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
+		sp->done(sp, QLA_OS_TIMER_EXPIRED);
+	}
 }
 
 static void qla24xx_abort_sp_done(srb_t *sp, int res)
-- 
2.50.1